Automobile brake



AUTOMOBILE RAKE Filed March l. 1920 2 Sheets-Sheet l SMM/Moz @Hoang July 3., 1923.

' N. C. DIVELBISS AUTOMOBILE 'BRAKE 2 Sheets-Sheet -2 Filed March l, 1920 'I UNJITEJ-D;SZTAIES f 1 NEWTON o. nIvELBIssLor SAN FRANCISCO, CALIF()aura.y ,i p l l companying drawings, wherein:

Patented July '3, 1923.

,AUTOMOBILE BRAKE. f i

invented new and useful Improvements in Automobile Brakes, of which the following t is a specication.

The object of the invention is to provide a simple and efficient brake for auto-mobiles and similar vehicles and in that connection more especially to provide a means for locking the car against retrograde movement,

the construction of the brake proper being such as to adapt it for application to machines of any or all of. the commercial types with only such necessary modilications as may be required in the means for actuating the same to suit the arrangements' of the running gears of such cars, and with this object in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the ac- Figure 1 is a plan view sho-wing the arrangement of the brake mechanism with reference to the driving wheels and indicating a typical form of means forvactuating the same. A

Figure 2 is a side view of the same. Figure 3 is a face view of the brake casing.

Figure 4 is a face view of the hub plate. Figures 5 and 6 are 4detail sectional views of the lock mechanism respectively in engaged and disengaged positions. The brake consists essentially of a tongue 10 fulcrumed as at 11 and terminally adapted for engagement with the serrated surfaces 12 of a hub plate 13 adapted to be carried by the drivin wheel, said tongue being yieldingly impel ed toward its engaging relation with the hub plate by a springv 14 and being actuable by a rod 15 having a swivel 16 with which may be connected any suitable operating devices adapted for the type of car in connection with whichy the brake mechanism is to` be used.

In the drawing there isshown merely for illustrative purposes,y an operating mechanism consisting of a tension rod 17 actuable by a brake lever 18 provided with suitable locking means 19, a lever 20 with`which said tension rod is connected, and links 21 extending from the lever to the operating rods 15, but, it will be understood that said con# ynections are subject n to @variation to suit the preferencesf'of f the design or the builder of the car or the type or construction .of the running gear of the car and therefore constitutes no essential part yof the presentinvention. t

rlhe tongue ing thereof -provided with a sleeve 22 through which extends the pivot pin 23 en- 1t) is of segmental form with f *i its extremity adjacent to the pivotal 'mo-unt# f gaged in eyes 24 vformed in straps 25'riveted or otherwise rigidly secured vto a Lcasing f plate26 forming the inner wall of a housing for the brake mechanism and accessiblel only through the guide opening 27yformed for the passage of the operating rod 15, so that the face of the serrated hub plate 13 `is protected from acc-tunulations of dustv andy other foreign matter.

Whenl the `operating rod is actuated tol cause contact of the `tongue with the .ser-

rated surface the side thereofl comesvinto contact with the beveled faces o-f the serwill bear against an offset or abrupt shoulder 28 and thus positively lock the wheel and thereforethe car against backward or' retrograde movement.

It will be understood that the brake may be readily applied to cars of any type in thatit does not involve anymodification in the usual construction of the wheels or the `consisting of alternate beveled and offset faces arranged 'on radial lines, a pivotal tongue of segmental form provided with a radial terminal for contact with said beveled faces and engaged with said shoulders, and means for actuating the tongue.

pro-

l 2. A vehicle brake having aserrated hub" plate consistin of alternate beveled faces and offset shou ders arranged onradial lines,

a casingplate covering said hubplate, `a c segmental tcngu-e-pvotally-meunted uponthe casngpllate With-its free fiend fdiepeeed jen a radial line in operative relationwyith the serrated face ovl" the hub plate, and means for actuting tlieftngue. l

3. A vehicle brake having a serrated hub plate consisting of alternate beveled 1v'faces vand o'set shoulders arranged en ;1a,d-ial lines, a casing plate covering said hub plate,

segmental tong-ue pVOtal-lyfmounted-:upon rthe caeng'plate wthits freeendfdisposed on ea 4:radial line Ain Qpenative d relaten with ftliegeeirated iaceof theihlb platfandf means for actuating the tongue, including a spring forimpelling the free end of tlle'tcngue to-V a'iidJs'a'ddseirrat'edkface, A-zt'r'flifan actuating rod connectedvwth the tongue and provided eX- --teri'erly'bf the casing plate With an attaching swivel 

